Adlink USB-3488A User Manual download pdf (Page 25)

Installation 17

2.5.4 Cabling

The following connection configuration can ensure that the GPIB

throughput achieves optimal performance. These configurations

include the number of instruments and cable distances:

 Cable lengths should be no longer than 4 meters (2 meter

lengths maximum is suggested).

 The total GPIB BUS distance should be less than 20 meter.

 The total number of devices must less than 15 (including

computer itself), and at least two-thrids (2/3) of the devices

are powered on.

Devices can be connected in a linear configuration, star configura-

tion, or combination the two. The following figures show both lin-

ear and star connections.

Note: For a star connection, the total current load will be less if

there are less than three cable connections on an individual

instrument.

Figure 2-4: LPCI-3488A Linear Connection Configuration

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 39 40

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Adlink USB-3488A User Manual Page 25